Trolley-switch.



E. L. SESSIONS. TROLLEY SWITOH.

Hman-xox mn au! s, mos.

Paname@ um 28, 19M.

2 fdff .UNITED STATES PATENT FFCE.

FRANK L. SESSIONS, OF COLUMBUS, OHIO, ASSIGNOB TO THE JEFFREY MANUFACTUE ING COMPANY, OF COLUMBUS, OHIO,

COBEOBTION OB' OHIO.

TROLLEY-SWITCH.

Application tiled my 5, 1908. erhl No. 681,012.

To all whom it may concern.'

Be it known that I, FRANK L. Sessions, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Im rovements in Trolley-Switches, of which t e following is a specification, reference being had therein to the accompanyin drawing.

his invention relates to switchinv or crossing devices for trolley wires, an has for its object to provide a switch which can be secured at any desired point alon a strai ht main wire, and which can be readily and rmly secured to such main wire and to e branching or cro wire.

Fi re 1 is a top plan view of a trolley switc ing device embodying my invention, shown attached to the trolley wires. Fi 2 is a side elevation of the same. Figs. 4 and 5 are cross sectional views, respectively, taken along the lines fz- 0-d, and e-f.

The switch plate as an entirety is indicated by 1, it being approximately triangular in shape and formed with the downwardly project edge flanges 2 and 3 and with the depen ing wheel depre-'ng rils 4., 5 and 6. These flanges and ribs may be of the common construction and serve to guide the under-runnin trolley wheel smoothly from either trol ey under-wire to the side of the switch plate, and vice versa.

The ends of the E5plate are turned upward, as shown at 7 and to assist in eectmg the passage of the wheel from the wire to the plate or from the plate to the wire without shock or 'ai'. These upturned ends are of the arch form shown at 9 and 10 at the sides of the guiding rib 4, this shape assisting in cante the trolley wheel with respect to the plate. On the upper surface o the plat/e there are ribs which form seam for the trolle wires. @ne of these is shown at 11--1 lying on the outside of the main wire or line wire 24. Opposed to the parts 11-11 of the rih there are short inside ribs at 11".

For the switch wire 25 there is a rib having' the parte 11 and 11, which lie outsid wire. The seat for the wire 9A is practically rectilinear this main wire extending across the top of the plate in substantially straight lines. The switching device is so designed that it can be applied at any desired point along a straight line wire withont necessitating the bending of the wire either vertically or laterally at the time of attachment, or subsequently requiring it to be straightened is changed. The switch wire 25 approaches the plate at an inclination, and then curves around and lies close to the rib sections 11-11".

The wires a. e secured to the switch plate by the clam ing blocks 12and 13. 14-14 are screw boite which pass through the apertures 15 in the clamping devic and en ge with threaded cavities at 16 in the p ate. To provide a prolonged engagement between the bolt and the switch p ate the latter is cast with the bosses or pro ections 17 extending upward from the plate at the point where the screw bolts en e.

The clamping blocks ave the flanges er projections 19 transverse to the wires re erably formed with recesses 18 into w ich the wires can t, and also have the dan or projections 20 which are adapted to engage with the outer sides of the wires. The clamps are forced down by the bolts against the wires. The late carries stops or abutments :for the amps sup lemental to the bolts or binding devices. o plrovide such stops or abutments, the wireolding rihe can be recessedy or formed with shoulders at 9.1, as shown.I Such stops or shoulders act to relieve the screw bolts of much oi the stress resnltin from the tension of the wires.

I provide or the switch wire a long and firm connection with the plate, inasmuch ns it is carried around the ribs 11' and 11" far enou to be clamped by the block 13. Each o the blocks 12 and 1B engages with both the main wire and the wire, the block 13 being made summentiy l toreach from one of thewiresscreas nhe other. The or rojectiom 20 lyin outside of the wires, the utter serve to hol them against lateral displacement.

What I claim isz- 1. A trolley switch' or crossing device ha a plate, a ineal wire seat on top ci the pla a threaded binding device enga with e plate, and a wire clamping evice between the threaded binding device and the plate, the said clam having a side and two end depending the side lange being adapted tc engage the if the positlon of the switch wire along one side, and the end Han being adapted to en ge the top of the wire, substantia ly as set girth.

2. The combination of a rectilineal main wire, a switching device comprising a plate adapted to be secured along its top to themain wire and having an upward extending rib one part of which is parallel to the main wire and another part of which lies at an acute angle to the main wire', a branch wire engaging with the upward extending rib on the side adjacent the main wire, and a clamping device for the said branch wire to en ge it at a point beyond the part of the ribi which is parallel to the main wire, substantially as set forth.

3. The combination of a main Wire, a switching device comprising a plate, means for securing the plate at its upper side to the main wire, an upward extending rib with its ends at an angle to each other, one of the ends extendin away from the main wire at an angle tiereto, a branch wire adapted to enga with the side of the said rib which is adcent the main wire, and a olampiia device to engage the branch wire at a pointeyond the end of the rib, substantially as set forth.

massa 4. The combination of a rectilineal main wire, a switching device comprising a plate, means for securing the plate at lts ugper side to the main wire, an upward exten ing rib with its ends at an agle to each other, one of the ends extending away from the main wire at an angle thereto, a branch wire adapted to engage with the said rib on the side adjacent the main wire, and clamping devices for the branch wire near each end of the rib, substantially as set forth.

5. In a trolley crossing or switching device a horizontal plate having upward extending ribs, one of the ribs having its ends at an angle to one another, one of the said ends extending away from the other rib at an angle thereto, two trolley wires each engaging one of the ribs on the side adjacent the other, and clamping devices adapted tc hold the wires in engagement with the plate and ribs, substantially as set forth.

In testimony whereof I aiiix my signature, in presence o two witnesses.

FRANK L. SESSIGNS.

Witnesses:

Dimmer Trim Fireman, .Inma G. CHANDLER. 

